Tub-drip.



Patented Nov. 30, 1915.

IMF/[Wilma S. S. AM DURSKY.

TUB DRIP.

APPLICATION FILED JUNE 1. 1915.

1 /1 T s scs:

uisirnn s'ra rns Parana. enric SAMUEL SFAMDURSKY, 0F. SYRACUSE, NEW YORK.,

TUB-DRIP.

Specification of Letters Patent. Patented Nay, 30, 1915,

Application filed June 1 1915. Serial No. 31,559.

To all whom it may concern: I

Be it known that I, SAMUEL S. AnnunsKY, acitizen of the United States of America, and a resident of Syracuse, in the county of Onondaga, in the' Stateof New York,

have invented new andusefulImprovements in Tub-Drips, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to an attachment for gas, steam and other streetmains whereby excessive acc'umulationsof wat'erof. condensation, oil or other foreign matter in the mains may be withdrawn by suction, or the quality or pressure ofgas or steam may be tested from the surface of the street, and

refers more particularly to the manner of connecting the suction or test pipes to the mains.

The main object'is to enable these mains to be easily and quickly tested for accumulations of foreign matter, pressure or quality of the as or steam passing therethrough without excessive opening of the main to such an extent as to allow' the escape of ob jectionable quantities of the fluid contained therein. Owing to the fact that these test tubes are placed under ground, they are more or less liable to become impaired or clogged with sediment aftera short period of use, and one of the iinportant'objects of my present invention is'to connect such tubes to the main in sections throughthe medium of a bushing or coupling in such mannor that they may be removed in sections or as a unit as the operator may elect;

Another obgect, therefore, is to: provide means whereby the bushlng and upper section may be secured together after being screw-connected so that the section which extends into the main may be removed s1- multaneously with the bushingand upper section-by properly turning the upper section which is most'easilyavailable.

A still 'further object is to extend the bushing upwardly some distance above its screw connection with the upper section to better supportthelatter and relieve the threaded connection from excessive strains andalso to protect the threads {from corroding elements which surround the bushing.

Other objects and uses will be brought out in the following description.

In the drawings-Figure l is an elevation, partly in section, of a portion or a street main for gas or steam showing what is commonly known as atubtdrip or trap and the a test tube connected thereto. Fig. 2 is an enlarged sectional view of the bushing for connecting the inner and outer pipe sec tions to each other and to the head or top of thetrap. Fig. 3 is an elevation, partly broken away, of the same'bushing-or cou pling as applied directlyto asteam or gas mainshowing a pressure gage on the outer end thereof, the main being shown in section.

. In orderv that my invention may be-clearly understood, I have shown a gas or steam main A.+ as provided with a tub drip or .6 and threaded portion -5 being chambered at to lighten the bushmg andto allow the annular flange as 6" at the outer end to engage an upwardly projecting pipe which may be inserted therein some distance froniits' screw engagement with the threaded portion'5l. I I

The externallv threaded inner end of the bushing is screwed into the opening 41 while the adjacent internally threaded portion -'-et is engaged by the threaded end of a pipe -8.. which extends downwardly into the trap A some distance below the level of the main -A to a point a short distance from the bottom of the trap.

A separate pipe -9' is inserted through the opening -6+- and has its inner end threaded and engaged -with .the threaded portion 5 in which positionit may be held byaset screw ---1O- enteringa radially 1 threaded aperture in the upper portion of the bushing between the threaded portion and flange 6-,thusperniitting"the a V bushing with the lower pipe section 8 to be removed upwardly by properly turning the upwardly extending pipe section 9.. This upper pipe extends to a point near the surface of the ground and is normally closed by a cap 1l while the opening in the pavement into which it projects may be closed by a surface cap or plate 12.

In Fig. 8, I have shown the same bushing 1. A street main having a relatively small threaded aperture in its upper side, a bushmg'hav ng a reduced externally threaded end screwed into the aperture, sa d bushing having an internally threaded portion at its inner end and an. additional internally threaded portion between its ends, and separate pipes screwed, respectively, into the internally threaded portions, one of thepipes extendinglinto the main .and the other pipe.

extending'jupwardly therefrom for cleaning or testing purposes.

2. A street main having a relatively small;

threaded aperture in. its upper side, a bushing having a reduced externally threaded end screwed into the aperture, said bushing having an internally threaded portion-at its inner end and an additional internally threaded portion between its ends, separate pipes screwed, respectively, into the internally threaded portions, one of the pipes extending into the 'main and the, other pipe extending upwardly therefrom for cleaning or testing purposes,-and means for securing the upwardly projecting pipe to the bushing, whereby the bushing and inner pipe'may be unscrewed from the-main by the turning of the upwardly projecting pipe.

3. A street main having a relatively small threaded aperture in its upper side, a bushing having a reduced externallythreaded end screwed into the aperture, said bushing havingianinternally threaded portion at its inner end and an additional internally threaded portion between its ends, and separate pipes screwed, respectively, into the in.- ternally threaded portions, one ofthe pipes 1 extending into the main and the otherpipe v extending upwardly therefrom for cleaningor testing purposes, the portion of the bushing at the outer end of the intermediate internally threaded portion being of smooth bore to allow the pipe to slide therethrough Gopies of this patent may be obtaine d for -andjfserving to brace the upwardly projecting pipe at a point some distance upwardly from said intermediate internally threaded portion.

4;. A street main having a tub drip provided with a relatively small opening in its 'top, a bushing threaded externally at one end and screwed into said opening, said bushinghaving its inner end and intermediate portion threaded internally and its outer end extended some distance beyond the intermediate internally threaded portion, separate pipes engaging the internal threads, one of the pipes extending into the main and the other pipe extending upwardly therefrom through the portion of the bushing abovethe intermediate internal threads, and means for locking the upwardly projecting pipe to the bushing, whereby the bushing and lower pipe may be removed from the main by turning the upper pipe, or by loosening the locking means permitting-the upper pipe to be removed independently of the bushing and lower pipe.

5. A cleaning and testing. attachment for street mains comprising a bushing having an externally threaded portion for attachment to the street'main and separate internally threaded portions, separate. coaxial pipes having adjacent threaded ends screwed, respectively, into the internally threaded portions, both pipes extending some distance beyond the corresponding ends ofthe bushing, one for entering-the main and the other for cleaningortesting purposes. v

6. A cleaning and testing attachment for street mains comprising a bushing having an externally threaded portion for attachment to the street main and separate inter- 1 the'bushing and both pipes may be removed or reinserted as a unit by properly turning the cleaning and testing pipe.

In witness whereof I have hereunto set my hand this 24th day of May, 1915.

SAMUEL Witnesses:

E. CHASE,

ALICE M. CANNON.

s. AMDURSKY.

five cents each, by addressing the. Commissioner of. Patent Washington, 1). c. 

